78410834 has 16 divisors (see below), whose sum is σ = 131090400. Its totient is φ = 34956864.

The previous prime is 78410821. The next prime is 78410879. The reversal of 78410834 is 43801487.

78410834 = 978² + 979² + ... + 1053².

It is a happy number.

It is a super-2 number, since 2×78410834² = 12296517777151112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78410794 and 78410803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60044 + ... + 61335.

It is an arithmetic number, because the mean of its divisors is an integer number (8193150).

Almost surely, 2^78410834 is an apocalyptic number.

78410834 is a deficient number, since it is larger than the sum of its proper divisors (52679566).

78410834 is a wasteful number, since it uses less digits than its factorization.

78410834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121417.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 78410834 is about 8854.9892151261. The cubic root of 78410834 is about 428.0147060193.

The spelling of 78410834 in words is "seventy-eight million, four hundred ten thousand, eight hundred thirty-four".